package socket;

import javax.swing.plaf.synth.SynthOptionPaneUI;
import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class Server {
    private ServerSocket serverSocket;
    private ExecutorService threadPool;
    public Server() {
        try {
            System.out.println("正在启动服务端");
            serverSocket = new ServerSocket(8088);
            System.out.println("服务端启动成功");
            threadPool = Executors.newFixedThreadPool(30);

        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
    public void start(){
        try {
            while (true) {
                System.out.println("等待客户端连接");
                Socket socket = serverSocket.accept();
                System.out.println("一个客户端链接了！");

                ClientHandler handler = new ClientHandler(socket);
//                Thread t = new Thread(handler);
//                t.start();
                threadPool.execute(handler);//将任务交给线程池执行

            }

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        Server server = new Server();
        server.start();
    }

    private class ClientHandler implements Runnable{
        private Socket socket;
        ClientHandler(Socket socket){
            this.socket = socket;
        }
        public void run(){
            try {
                InputStream in = socket.getInputStream();
//            int a = in.read();
//            System.out.println(a);
                int len;
                while ((len = in.read()) != -1) {
                    byte[] data = new byte[len];
                    in.read(data);
                    String message = new String(data, StandardCharsets.UTF_8);
                    System.out.println("客户端信息：" + message);
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

}
